By far the best part of Chance Glasco's demo of Infinity Ward's Call of Duty 4 at Activate Asia this year was when he killed a dog.
Yeah, a dog.
Sneaking through Pripyat, Russia, all decked out in his sexy-looking Ghillie suit, Chance tried to snipe an enemy soldier in a nearby church bell tower. He fired about five shots. They all missed. The soldier was - expectedly - upset.
Seconds later, Chance was beset by troops and trained killer puppies. One of the animals jumped Chance, knocking his player to the ground. After a few chomps, Chance, with deadly precision, reached his hands up and snapped the creature's neck. Objectively, it was an awesome bit of gameplay.
We found out later that the neck-snapping was completely unintentional, and, in fact, it was the one thing Activision had informed Chance he shouldn't do.
We didn't mind that he did, though.